British Prime Minister Gordon Brown will this week confirm the winners of a third round of bidding to build and operate wind farms in nine offshore zones in the country.

The wind farms will generate over 25,000MW of renewable energy entailing an investment of $161bn (£100bn).

RWE Npower, Scottish and Southern Energy, Statkraft and StatoilHydro are expected to develop a 10,000MW capacity at the largest site, the Dogger Bank zone situated 110km off the UK’s east coast, according to a report in the Sunday Times.

A 5,000MW zone off the Norfolk coast is likely to be developed by Scottish Power and Vattenfall, while Sea Energy and EDP may be awarded a site in Scotland’s Moray Firth.

Mainstream Renewables, E.ON and Centrica are also expected to be among the winners.

Construction is expected to begin by 2014 and most of the projects are expected to be completed by 2020.

The UK aims to generate 15% of its power from renewable sources by the end of the decade.